Located just northeast of Denver, the Rocky Mountain Arsenal National Wildlife Refuge is a 15,000-acre expanse of prairie, wetland and woodland habitat. The land has a unique story – it has survived the test of time and transitioned from farmland to war-time manufacturing site to wildlife sanctuary today. It may be one of the finest conservation success stories in history and a place where wildlife thrives. Photo by Jennifer Howell, U.S. Fish and Wildlife Service.